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Finding the Fourth Proportional to 573,547.32, 791,479.02 and 318,893.88

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Solution

The fourth proportional to 573,547.32, 791,479.02 and 318,893.88 is: 440,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,547.32 : 791,479.02 = 318,893.88 : x
  2. Step 2: Convert to fraction form
    573,547.32/791,479.02 = 318,893.88/x
  3. Step 3: Cross multiply
    573,547.32x = 791,479.02 × 318,893.88
  4. Step 4: Simplify right side
    573,547.32x = 252,397,815,626.40
  5. Step 5: Solve for x
    x = 252,397,815,626.40/573,547.32
  6. Step 6: Final answer
    x = 440,064.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.